purview vs horizon

purview and horizon both are nouns.

Word	Noun	Adjective	Verb	Adverb
purview	Yes	No	No	No
horizon	Yes	No	No	No

As nouns, purview and horizon are synonyms defined as:

purview and horizon: the range of interest or activity that can be anticipated

Other synonyms of purview include view.

purview (noun)	horizon (noun)
the range of interest or activity that can be anticipated	the range of interest or activity that can be anticipated
	the line at which the sky and Earth appear to meet
	a specific layer or stratum of soil or subsoil in a vertical cross section of land
	the great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth